X-Git-Url: http://git.hungrycats.org/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=hacks%2Fglx%2Fflipscreen3d.c;h=7217de969353a13599215bb93abf148199a81392;hb=3f1091236d800c43a3124c44c7da54e53f205b13;hp=12107e269e16b3e5ac8d5952d9a40df2c8fdf46a;hpb=49f5b54f312fe4ac2e9bc47581a72451bd0e8439;p=xscreensaver

diff --git a/hacks/glx/flipscreen3d.c b/hacks/glx/flipscreen3d.c
index 12107e26..7217de96 100644
--- a/hacks/glx/flipscreen3d.c
+++ b/hacks/glx/flipscreen3d.c
@@ -34,6 +34,15 @@
 
 #ifdef USE_GL
 
+/* Should be in <GL/glext.h> */
+# ifndef  GL_TEXTURE_MAX_ANISOTROPY_EXT
+#  define GL_TEXTURE_MAX_ANISOTROPY_EXT     0x84FE
+# endif
+# ifndef  GL_MAX_TEXTURE_MAX_ANISOTROPY_EXT
+#  define GL_MAX_TEXTURE_MAX_ANISOTROPY_EXT 0x84FF
+# endif
+
+#define DEF_ROTATE "True"
 static int rotate;
 
 #define QW 12
@@ -50,7 +59,7 @@ static XrmOptionDescRec opts[] = {
 
 
 static argtype vars[] = {
-  {&rotate, "rotate", "Rotate", "True", t_Bool},
+  {&rotate, "rotate", "Rotate", DEF_ROTATE, t_Bool},
 };
 
 
@@ -99,16 +108,14 @@ typedef struct {
   Bool waiting_for_image_p;
   Bool first_image_p;
 
+  GLfloat anisotropic;
+
 } Screenflip;
 
 static Screenflip *screenflip = NULL;
 
 #include "grab-ximage.h"
 
-#ifndef M_PI
-#define M_PI 3.14159265
-#endif
-
 static const GLfloat viewer[] = {0.0, 0.0, 15.0};
 
 
@@ -134,7 +141,9 @@ screenflip_handle_event (ModeInfo *mi, XEvent *event)
     }
   else if (event->xany.type == ButtonPress &&
            (event->xbutton.button == Button4 ||
-            event->xbutton.button == Button5))
+            event->xbutton.button == Button5 ||
+            event->xbutton.button == Button6 ||
+            event->xbutton.button == Button7))
     {
       gltrackball_mousewheel (c->trackball, event->xbutton.button, 10,
                               !!event->xbutton.state);
@@ -313,12 +322,21 @@ static void drawgrid(void)
 static void display(Screenflip *c, int wire)
 {
   int frozen;
+  GLfloat rot = current_device_rotation();
 
   glClear(GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT);
   glLoadIdentity();
   gluLookAt(viewer[0], viewer[1], viewer[2], 0.0, 0.0, 0.0, 0.0, 1.0, 0.0);
   glPushMatrix();
 
+  glRotatef(rot, 0, 0, 1);
+  if ((rot >  45 && rot <  135) ||
+      (rot < -45 && rot > -135))
+    {
+      GLfloat s = c->winw / (GLfloat) c->winh;
+      glScalef (s, 1/s, 1);
+    }
+
   if (inposition(c)) {
     frozen = 0;
     glTranslatef(5 * sin(c->theta), 5 * sin(c->rho), 10 * cos(c->gamma) - 10);
@@ -331,7 +349,9 @@ static void display(Screenflip *c, int wire)
       if (random() % 2)
         c->dgamma = 1/60 - (float)(random() % 100)/3000;
     }
+    glRotatef(-rot, 0, 0, 1);
     gltrackball_rotate (c->trackball);
+    glRotatef(rot, 0, 0, 1);
     if (rotate) glRotatef(c->rot, c->rx, c->ry, c->rz);
 /* update variables with each frame */
     if(!c->button_down_p && !c->fadetime) {
@@ -405,6 +425,10 @@ image_loaded_cb (const char *filename, XRectangle *geometry,
   glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER,
                    (c->mipmap_p ? GL_LINEAR_MIPMAP_LINEAR : GL_LINEAR));
 
+  if (c->anisotropic >= 1.0)
+    glTexParameterf (GL_TEXTURE_2D, GL_TEXTURE_MAX_ANISOTROPY_EXT, 
+                     c->anisotropic);
+
   c->waiting_for_image_p = False;
   c->first_image_p = False;
 }
@@ -457,8 +481,6 @@ ENTRYPOINT void init_screenflip(ModeInfo *mi)
  c->show_colors[0] = c->show_colors[1] = 
    c->show_colors[2] = c->show_colors[3] = 1;
 
- glClearColor(0.0,0.0,0.0,0.0);
-
  if (! MI_IS_WIREFRAME(mi))
    {
      glShadeModel(GL_SMOOTH);
@@ -469,6 +491,12 @@ ENTRYPOINT void init_screenflip(ModeInfo *mi)
      glDisable(GL_LIGHTING);
    }
 
+ if (strstr ((char *) glGetString(GL_EXTENSIONS),
+             "GL_EXT_texture_filter_anisotropic"))
+   glGetFloatv (GL_MAX_TEXTURE_MAX_ANISOTROPY_EXT, &c->anisotropic);
+ else
+   c->anisotropic = 0.0;
+
  glGenTextures(1, &c->texid);
 
  c->first_image_p = True;